Electric four-wheel balance vehicle

ABSTRACT

The present invention discloses an electric four-wheel balance vehicle includes a housing, a pedal device, a balancing device, a driving device, and a power supply device. The balancing device is provided in the housing. The pedal device includes a pedal, a fixed frame, and an elastic pad. The housing is provided with two pedal holes. The pedal is movably embedded in the pedal hole, and is limited in the housing by the fixing frame located on a top of the pedal. The elastic pad is provided between the housing and the pedal. The balancing device is provided in the housing, and is coupled with the pedal in a transmittable manner. The driving device includes a control board, two front motor-wheels, and two rear universal wheels. The balancing device is connected to the control hoard in a communicating manner.

TECHNICAL FIELD

The present invention relates to the balance vehicle, especially relates to an electric four-wheel balance vehicle.

BACKGROUND

The balance vehicles in the prior art are usually designed as a two-wheel form. For example, Chinese invention patent application No. 201410262108.8 discloses an electric balance swim car. Though it includes a hub motor and a gyroscope which is used as a balancing structure, due to the unstability of the two-wheel mechanism, security issue such as the tilting of the vehicle upon abrupt power off is inevitable.

SUMMARY

In order to overcome the defects in the prior art, the purpose of the present invention is to provide an electric four-wheel balance vehicle, which can move steadily and with balance under the control of the balancing device.

The purpose of the present invention can be achieved by the following technical solutions:

An electric four-wheel balance vehicle includes a housing, a pedal device, a balancing device, a driving device, and a power supply device. The balancing device is provided in the housing. The pedal device includes a pedal, a fixed frame, and an elastic pad. The housing is provided with two pedal holes. The pedal is movably embedded in the pedal hole, and is limited in the housing by the fixing frame located on a top of the pedal. The elastic pad is provided between the housing and the pedal. The balancing device is provided in the housing, and is coupled with the pedal in a transmittable manner. The driving device includes a control board, two front motor-wheels, and two rear universal wheels. The balancing device is connected to the control board in a communicating manner. The power supply device is electrically connected to the balancing, device, the control board, and the front motor-wheels respectively. The two front motor-wheels are symmetrically and pivotally mounted on a front portion of the housing respectively. The two rear universal wheels are mounted on a rear portion of the housing.

Preferably, the balancing device includes a sensing circuit board, a gyroscope, and a gyroscope input board. The sensing circuit board is connected to the gyroscope in a communicating manner. Each gyroscope input board corresponds to each pedal one-to-one, and pushes against the pedal respectively. Wherein the gyroscope input hoard is connected to the gyroscope in a communicating manner.

Preferably, the housing includes a movable casing, a fixing holder, and a bottom cap. The movable casing is movably mounted on the fixing holder, and forms a mounting space with the bottom cap where the fixing holder is mounted. The fixing holder is located, in the mounting space. The pedal bole is provided in the movable casing. The two front motor-wheels are symmetrically and pivotally mounted on a front portion of the fixing holder respectively. The two rear universal wheels are mounted on a rear portion of the bottom cap.

Compared to the prior art, advantageous effects of the present invention are:

The present invention is provided with two stamp holes through the housing, connecting the balancing device and the driving device that control the forward and backward movements respectively. During the operation, the forward or backward stamping on pedals correspondingly makes front motor-wheels move forward or backward. With the support of rear universal wheels, front motor-wheels are driven by driving device 4, so as to accomplish the instruction of moving forward, backward, leftward, or rightward. As such, the vehicle of the present invention can move steadily and with balance, avoiding the risk of tilting upon the abrupt power off.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is the three-dimensional structure schematic diagram of the electric four-wheel balance vehicle of the present invention;

FIG. 2 is one of the exploded view of the electric four-wheel balance vehicle of the present invention;

FIG. 3 is the second one of the exploded view of the electric four-wheel balance vehicle of the present invention.

In the drawings: 1. housing; 101. pedal hole; 11. movable casing; 12. fixing holder; 13. bottom cap; 2. pedal device; 21. pedal; 22. fixed frame; 23. elastic pad; 3. balancing device; 31. sensing circuit board; 32. gyroscope; 33. gyroscope input board; 4. driving, device; 41. front motor-wheel; 42. rear universal wheel; 5. power supply device.

DETAILED DESCRIPTION

Hereinafter, the present invention is further described in detail with the help of drawings and embodiments:

As shown in FIG. 1˜3, an electric four-wheel balance vehicle includes housing 1, pedal device 2, balancing device 3, driving device 4, and power supply device 5. Balancing device 3 is provided in housing 1. Pedal device 2 includes pedal 21, fixing frame 22, and elastic pad 23. Housing 1 is provided with two pedal holes 101. Pedal 21 is embedded movably in pedal hole 101, and is limited in housing 1 by fixing frame 22 which is located on the top of pedal 21. Elastic pad 23 is provided between housing 1 and pedal 21. Balancing device 3 is provided in housing 1, and is coupled with pedal 21 in a transmittable manner. Driving device 4 includes a control board, two front motor-wheels 41, and two rear universal wheels 42. Balancing device 3 is connected to the control board in a communicating manner. Power supply device 5 is electrically connected to balancing device 3, the control board, and front motor-wheels 41 respectively. Two front motor-wheels 41 are symmetrically and pivotally mounted on a front portion of housing 1 respectively. Two rear universal wheels 42 are mounted on a rear portion of housing 1.

Two stamping holes are provided through housing 1, connecting balancing device 3 and driving device 4 that control the forward and backward movements respectively. During the operation, the forward or backward stamping on pedal 21 correspondingly makes front motor-wheel 41 move forward and backward. With the support of rear universal wheel 42, front motor-wheel 41 is driven by driving device 4, so as to accomplish instructions of moving forward, backward, leftward, and rightward. As such, the present invention can move steadily and with balance, avoiding the risk of tilting upon the abrupt power off.

Power supply device 5 provides power to balancing device 3 and driving device 4. The stamping on pedal 21 makes pedal 21 move forward, backward, leftward, or rightward. Electric signal is generated to balancing device 3. Balancing device 3 sends instructions to control driving device 4 to make corresponding forward backward, leftward, or rightward instructions. Front motor-wheel 41 leads the vehicle to move forward, backward, leftward, or rightward steadily. In this embodiment, power supply device 5 is a storage battery pack, and elastic pad 23 is a plastic pad.

For example, balancing device 3 includes sensing circuit board 31, gyroscope 32, and gyroscope input board 33. Sensing circuit board 31 and gyroscope 32 are connected in a communicating manner. Gyroscope input board 33 and pedal 21 correspond with each other one-to-one. Each gyroscope input hoard 33 respectively pushes against each pedal 21. Gyroscope input board 33 and gyroscope 32 are connected in a communicating manner. The movement of pedal 21 is fed back to sensing circuit board 31 through gyroscope input board 33, and is corrected by gyroscope 32 to control driving device 4. In order to adapt the forward, backward, leftward, or rightward movement of pedal 21, a plurality of gyroscope input boards 33 are located at a plurality of input contacts all around pedal 21 correspondingly. Accordingly, the convex part which pass through housing 1 is provided on elastic pad 23, and is used to push against gyroscope input board 33.

For example, in order to improve the stability, housing 1 includes movable casing 11, fixing holder 12, and bottom cap 13. Movable casing 11 is movably mounted on fixing holder 12, and forms a mounting space together with bottom cap 13 where fixing holder 12 is mounted. Fixing holder 12 is located in the mounting space. Pedal hole 101 is provided in movable casing 11. Two front motor-wheel 41 are symmetrically and pivotally mounted on a front portion of fixing holder 12. Two rear universal wheels 42 are mounted on a rear portion of bottom cap 13. More specifically, in this embodiment, movable casing 11 can be divided into two half-shells, each of which is movably mounted on fixing holder 12 respectively, so as to improve the flexibility of forward, backward, leftward, and rightward movements of movable casing 11.

For a person of ordinary skill in the art, various modifications and alternations can be made according to the technical solution and concept described above. However, all of these modifications and alternations fall within the scope of the claims of the present invention. 

What is claimed is:
 1. An electric four-wheel balance vehicle, comprising: a housing, a pedal device, a balancing device, a driving device, and a power supply device, wherein the balancing device is provided in the housing; wherein the pedal device includes a pedal, a fixed frame, and an elastic pad; wherein the housing is provided with two pedal holes, wherein the pedal is movably embedded in the pedal hole, and is limited in the housing by the fixing frame located on a top of the pedal; wherein the elastic pad is provided between the housing and the pedal; wherein the balancing device is provided in the housing, and is coupled with the pedal in a transmittable manner; wherein the driving device includes a control board, two front motor-wheels, and two rear universal wheels; wherein the balancing device is connected to the control board in a communicating manner; wherein the power supply device is electrically connected to the balancing device, the control board, and the front motor-wheels respectively; and wherein the two front motor-wheels are symmetrically and pivotably mounted on a front portion of the housing respectively; and wherein the two rear universal wheels are mounted on a rear portion of the housing.
 2. The electric four-wheel balance vehicle according to claim 1, wherein the balancing device includes a sensing circuit board, a gyroscope, and a gyroscope input board, wherein the sensing circuit board is connected to the gyroscope in a communicating manner, wherein the gyroscope input board corresponds to the pedal one-to-one, and pushes against the pedal respectively, and wherein the gyroscope input board is connected to the gyroscope in a communicating manner.
 3. The electric four-wheel balance vehicle according to claim 1, wherein the housing includes a movable casing, a fixing holder, and a bottom cap, wherein the movable casing is movably mounted on the fixing holder, and forms a mounting space with the bottom cap where the fixing holder is mounted, wherein the fixing holder is located in the mounting space, wherein the pedal hole is provided in the movable casing, wherein the two front motor-wheels are symmetrically and pivotally mounted on a front portion of the fixing holder respectively, and wherein the two rear universal wheels are mounted on a rear portion of the bottom cap.
 4. The electric four-wheel balance vehicle according to claim 2 wherein the housing includes a movable casing, a fixing holder, and a bottom cap, wherein the movable casing is movably mounted on the fixing holder, and forms a mounting space with the bottom cap where the fixing holder is mounted, wherein the fixing holder is located in the mounting space, wherein the pedal hole is provided in the movable casing, wherein the two front motor-wheels are symmetrically and pivotally mounted on a front portion of the fixing holder respectively, and wherein the two rear universal wheels are mounted on a rear portion of the bottom cap. 